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MAX8903BETI Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX8903BETI Datasheet(HTML) 9 Page - Maxim Integrated Products |
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9 / 30 page  2A 1-Cell Li+ DC-DC Chargers for USB and Adapter Power _______________________________________________________________________________________ 9 CHARGE PROFILE—1400mAh BATTERY USB INPUT—500mA CHARGE TIME (min) 180 160 120 140 40 60 80 100 20 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0.450 0.500 0 0 200 VBAT IBAT MAX8903A toc18 MAX8903A/MAX8903B/MAX8903C IUSB SET TO 500mA IBAT SET TO 2A 200ns/div MAX8903A/B/C/D/E/H/J/Y DC SWITCHING WAVEFORMS—LIGHT LOAD 20mV/div AC-COUPLED MAX8903A toc19 500mA/div 0A 5V/div 0V VOUT VLX ILX RSYS = 44 Ω MAX8903G DC SWITCHING WAVEFORMS—LIGHT LOAD MAX8903A toc19a 10V/div 0A 50mV/div AC-COUPLED 0V 1A/div VSYS VLX ILX 1µs/div VDC = 9V, L = 2.2µH CSYS = 22µF, RSYS = 44 I MAX8903A/B/C/D/E/H/J/Y DC SWITCHING WAVEFORMS—HEAVY LOAD MAX8903A toc20 200ns/div VLX VOUT ILX 5V/div 0V 20mV/div AC-COUPLED 500mA/div 0A RSYS = 5 Ω MAX8903G DC SWITCHING WAVEFORMS—HEAVY LOAD MAX8903A toc20a 10V/div 0A 50mV/div AC-COUPLED 0V 1A/div VSYS VLX ILX 1µs/div VDC = 9V, L = 2.2µH CSYS = 22µF, RSYS = 5 I CEN = 1 DC CONNECT WITH USB CONNECTED (RSYS = 25 Ω) MAX8903A toc21 200 µs/div IDC VSYS IUSB IBAT 2V/div 500mA/div 500mA/div 500mA/div 0A 3.6V 347mA -IBAT = CHARGING 475mA -335mA Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) |
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